Improvement in wire-barbing machines



3 Sheets-Sheet 1".

T. B. DOOLITTLE. Wire-Bombing Machine.

ented Jan. 22

NLFI'ERS, PHOTO-LITHOGRAPHER, WASHLNGTDN. D. C4

Y3 Sheets-Sheet 2.

T. B'. DOOLITTLB. Wire-BarbngMachine.

Patented Jan. 22,1878.

MZESSEE;

17u/Erin?,-

N-PETEHS, FHOT0LPTNOGRAPHER, WASHINGTON, D CV 3 Sheets-Sheet 8.

T. B. DOOLITTLE. W're-Barbng Machine.

No. 199,524. Patented Jan. 22,1878..

UNITED STATES PATENT OEEIoE.

THOMAS B. DOOLITTLE, OF BRIDGEPORT, CONN., ASSIGNOR TO WASHBURN & MOENMANUFACTURING COMPANY, OF WORCESTER, MASS.

IMPROVEMENT IN WIRE-L .ARIBING MACHINES.

Specification forming part of Letters Patent No. 199,524, dated January22, 1878 application filed October 22, 1877.

.description of the same, reference being had to the accompanyingdrawings, forming a part of this specification, and in which- Figure 1represents a top or'plan view of a machine embodying mysaidimprovements.

Fig. 2 represents' a side view of the same, looking in the directionindicated by arrow 1, Fig. 1. Fig. 3 represents, upon an enlarged scale,a vertical transverse section ofthe machine, taken on line A B, Fig. 1,looking in the direction indicated by arrow2 ofthe same iigure. Fig. 4represents, also upon an enlarged scale, a section on line C D, Fig. 3,looking in the direction indicated by arrow 3 "of the same figure,showing a plan view of a portion of the machine, as will be hereinaftermore fully described. Fig. 5 represents, also upon an enlarged scale, adetail of one of the supporting standards and sliding journalbearing.Fig. 6 represents, also upon an enlarged'scale, a barb in the process ofbeing bent about the wire. A Fig. 7 represents abarb folded about thewire, and Fig. 8, Sheet 3, represents a perspective view of the machinewith `certain parts removed, so as to `show cams and operating-levers. Y

To enable those skilled in the art to which my invention belongs to makeand use the same, I will proceed to describe it more in detail.

In the drawings, the parts markedArepresent the frame-work of themachine. B represents the main driving wheel or pulley of the same,which may be run by an `endless belt, C, connected tothe main shafting,and by means of Vwhich vpower is imparted to the machine through saidwheel'or pulley B, shaft D, coggears E and F, shaft G, auxiliarydrivingwheels H and I, shafts J and K, and coggears Land M.

VWheels or pulleys H and I are connected and run by means of aroundbelt, N, said wheels being formed with a groove similar in form, to-receive it. Although I employ a round belt in this instance, any otherform may be used, if preferred.

Upon main frame A are secured two frames,

O and O', their upper portions forming standards P P', in which arearranged the bearings of shaft Q, upon which are mounted and rigidlysecured spur-gear Q' and grooved feed roll or pulley Q", while theirlower portions extend or hang down and support the bearings orjournalsfof shaft Q', upon which are mounted spur-gear Q"" and groovedfeed roll or pulley Q'H", which work in connection with spur-gear Q' andgrooved feed 'roll or pulley Shaft Q' atone side of the machine isprovided upon its end with a standard, R, loosely fitted upon the same,and having a ratchetwheel, R', secured to its outer end by means Saidstandard R is held in place laterally by means of Aratchet-wheel R' of aset-screw, c.

upon one side, and by a nut, d, screwed upon the end of shaft Q'" uponthe other side.

Upon the inner side ofthe standard R, over ratchet-wheel R', is pivoted,at e, a pawl, f,

which catches into ratchet-teeth gnpon ratchetwheel R', while upon theouter side of standard R, and near its upper end, is fulcrumed one endof a lever, S, its other end being fulcrumed upon a hub, h, cast upon orsecured to `driving-wheel H.

As-wheel H revolves, in connection with the other parts of the machine,standard R is drawn forward or carried back, as the case may be, bylever S secured to hub h, the latter acting as a crank or wrist pin.During the revolution of hub h above the horizontal line of center ofwheel H, pawl f is being drawn back over ratchet-teethg; but as soon asit passes below said central line in its reverse motion, 4said pawl fcatches into one of the ratchet-teeth g, and turns ratchet-wheel R',thereby turning the spurgear and grooved vfeed-rollupon shaft Q', andas the former Standard R is provided upon its outer side with twoflanges, f' f", which extend from the top of the standard to the pointf', and the journal of lever S is so arranged that by loosening a nut,g', it may be slid up or down in the groove formed by said flanges f'f", so that the radius or swing of said lever S may be regulated to agreater or less degree, thereby allowing of the distance between thebarbs to be varied more or less, as desired.

As will be observed by Figs. l and 2 of the drawings, feed-rolls Q" andQ""' are provided with three circular grooves, '5, which may all be ofone size 5 or they may each be of a dierent size, to conform todifferent sizes of wire, as desired.

Upon frame piece O' is arranged a wireguide, 7c, through the end ofwhich1 is an opening or hole, through which the wire passes, and isguided between one of the set of grooves z'. Said guide-piece 7c isprovided with a slot, Z, through which a set-screw, m, is passed,whereby it may be adjusted so as to guide i the wire intov any one ofthe set of grooves t' desired.

To secure against feed-rolls Q'l and Q"", spur-gears Q' and Q"", or anyof the adjoining parts becoming injured or broken by particles of metaland other substances getting between them, and to allow of an adjustmentof the parts to produce the necessary pressure required upon the wire tofeed the latter into and through the machine, the following arrangement,which gives to the upper grooved and gear wheels a springing motion, isprovided: Through each standard P and P' is cut a rectangular-shapedhole or opening, a, into which are fitted loosely bearings u', and inwhich bearings turn the ends of shaft Q. Upon the upper ends of saidbearings n' rest curved spring-plates n".

Set-screws n' are inserted through the upper ends of standards P and P',with their lower ends resting upon spring-plates n", and by means'ofwhich the pressure upon the journals of shaft Q can be regulated atpleasure, thus enabling the attendant to increase or diminish thepressure of the feed-rolls upon the wire passing between them. It Vwillbe understood that shafts Q and Q"' are prevented from movinglongitudinally in the usual manner, viz., by having shoulders turned ontheir ends to abut against their journal-boxes.

Upon shaft D, and bearing against standard D', projecting up from frameA, ris arranged and secured a cam, D", which operates a lever, D"',fulcrumed upon a rod or bolt, p, passing through and supported inbearings or vstandards q, and held in place by a nut, i".

The forward end or head of lever D' is provided with a barb-compressinghammer or die,

` s, for fastening or compressing the barbs upon the wire, the lower endbeing formed with a circular groove, t, for that purpose, as representedin Fig. 3 of the drawings. A corresponding groove, u, is also formed ina block, fu, secured in block 4, secured to main frame A. Block z isheld in place in said block 4 by means of a wedge, w. The forward end ofsaid block t projects above the top of block 4, forming a flange, w',and a tube or pipe, w, for guiding the wire, is passed through it, andabout half-way through the block, only about half of the tube, in thisinstance, being embedded in the block beyond the ange.

The opposite end of block o projects beyond the side of block 4, and isbeveled down to form the angles represented by dotted lines o', Fig. 3of the drawings, for the purpose of preventing the points y of the barbsbeing twisted or bent too far around to form a wellshaped barb, as theneck of the barb is secured upon the wire by barb -compressing hammer ordie s, said bevel being formed so that the edges y' of points y of thebarbs will be, when secured upon the wire, about the angle represented.

Pins y" secured to the head of lever D' pass down just beyond the edgeof block t, and serve the purpose of preventing the points of the barbsfrom being bent out of shape, they keeping them in a straightperpendicular line from the-side of the wire.

In order that an adjustment of barb-compressing hammer or die s may bemade, a screw, t', set-nut t", and set-screw t' are provided for thepurpose.

The operation of fastening a barb upon the wire by compressing hammer ordie s, with its groove t, in combination with groove a, is as follows Asgroove t strikes upon the top y'" of the neck of the barb, over thecenter of the wire, it is pressed down around the same at the top',while at the same time the lower edges y"" of the neck of the barb comein contact with the curved surface u, which bends them in under andaround the under side of the wire, thereby securely fastening the barbupon the same.

Upon the rear end of lever D"' is hung or secured upon a hook, z,secured to said lever, a wire, z', forming a part of spiral spring z",secured to the lower part of frame A, (shown in dotted lines, Fig. 2,)which spring operates to always keep the rear end of lever D"' incontact with cam D".

Upon shaft D, also bearing against standard D', but upon the oppositeside from cam D", is secured a cam, D"", which operatesa sliding frame,T, which slides in a socket formed to receive it in bed-piece T',secured to frame A by means of screws l.

The inner end of sliding frame T is bent and extended up to form astandard, 2, against which bears cam D"", while upon its outer end issecured an inclined piece, 3, which eX- tends up over block 4 secured tostandard A. Upon the upper end of piece 3 is secured a barb-holdingdevice, consisting of the follow ing arrangement of parts. A long squarepiece of metal, 5, the inner end of which is beveled til ii of upononeside, as represented in Figs. ,1, and @of the drawings, is 'securedimmediately upon the endv of said'piece 3,`and is `provided with twoflanges or ears", 6 and 7, through which is passed a .square bar, 3,providedk with a spiral spring, 9, held in place between flange 7 and apin, 10, which pin strikes and bears against a stop piece or standard,11, secured to the end of block 45 Upon the inner end of bar 8 is hingedone end of an arm or lever, 12, provided with a head, 13, held againstthe side of piece 5 by a flat spring, 14, secured to bar 8 at 15. Theoperation of the several parts will be hereinafter described.

U is an inclined receptacle or feed-guide, in which are placed the barbsto be fed into the machine, preparatory to being compressed upon orabout the wire.` Said inclined receptacle U is formed, as shown in Figs.1, 3, and 4, with two flanges, II', and a rib, U", which serve to keepthe barbs in place, flan ges U keeping them from falling out andassisting in guiding them, while rib U `prevents their turning ormovin gout of position laterally.

The barbs are passed into the receptacle with their necks down, asrepresented by barbs U, Fig. 4, the two points upon each side fof thebarb passing down under flanges U', while the third upper point, as,passes down outside between them. The receptacle may be filled withbarbs in the above-mentioned manner, thereby obviating the necessity ofconstant attendance upon this part of the machine.

In order that each barb may be deposited at the bottom of receptacle Useparately, and at the proper time to be fed into the machine under thebarb-compressing die or hammer s, an arrangement is provided inconnection with sliding frame T by means of which such a result may beobtained, and to this end two standards, 16 and 17, are secured to saidsliding frame T, through the upper ends of which are passed wires orfingers 18 and 19, provided with adjusting-screws 20.

The operation of feeding a barb out of inclined receptacle U4 into themachine is as follows: As the action of cam D is released upon standard2 of sliding frame T by means of a spiral spring21, secured at one endto frame A at 22, and the other end to the lower end of standard 17,which is extended down through frame A for that purpose, and slotsformed in said frame A and in bed-piece T' to allow of its movement backand forth, sliding frame T is drawn back which operation draws backstandards 16 and 17, with fingers 1S and 19, a sufficient distance toallow a barb to slide down beyond the end of finger 18 between thefingers, and rest against nger 19, when cam D then reverses the motion,carrying back finger 19, which allows the barb to slide down and restupon the top of block 4c, between the end of bar 5 and head 13 of arm12, said parts forming jaws, which receiveand carry it vundervbarb-compressing hammer Aor dies, tofbe acted upon as before explained.V y l The barb having been ldeposited and held over the center of thewire until acted upon byhammer or die s, the action of sliding-frame Tis thenreversed, and by the time the jaws arelin properfposition againanother barb ist dropped in between themand carried under hammer or dies, andA so on from each succeeding barb to the next.

V is a reel, upon which the wire is wound after havin g been passedthrough the machine and barbed, and is arranged so that it may beremoved and replaced by another after hav-v ing been llcd with thebarbed wire.

The entire operation may be briefly summed up thus: The wire, inentering the machine, rst passes through the opening in adjustableguide-piece k arranged upon frame O', thence between feed rolls orwheels Q and Q, which feed it forward into and through tube or pipe xover circular grooved portion u, when the barb, which has meanwhile beenfed forward between the jaws formed by the end of bar 5 and head 13 ofarm 12 over the center of the wire, is then bent and pressed around saidwire by barb-compressing hammer or die s, provided with circular groovedend t, acting in combination with circular groove u, when it is againfed 4forward to the point upon which the next barb is to be secured, andthe operation above mentioned repeated, the barbed wire being wound uponreel V as fast as manufactured, and fed forward in an even and uniformmanner, as before explained.

I have shown in Figs. 1 and 2 a reeling mechanism; butthis forms no partof the invention of the present application.

Having described my improvements in machines for putting on or attachingbarbs to wire for fencing purposes, what I claim therein as new and ofmy invention, and desire to secure by Letters Patent, is-

1. The combination, with the shafts Q and Q, provided with gears Ql andQ, of the grooved feed-rolls Q and Q, grooved standard R, ratchet-wheelIt', pawl f, and operatinglever S, with its journal and journal-nut g,substantially as and for the purposes set forth.

2. The combination, with feed-rolls QII and Q, provided with two or.more grooves, of adjustable guide lo and tube or pipe substantially asand for the purposes set forth.

3. The combination of lever D, cam D, and barb-compressing hammer or dies with grooved block o and pins y", said parts being constructed andrelatively arranged substantially as and for thepurposes set forth.

4. The combination, with shaft D :and sliding frame T, of cam D',inclined piece 3, sliding piece 5, provided with ears 6 and 7, bar 8,hinged arm or lever 12, head 13, and spring 14, substantially as and forthe purposes set forth.

5. The combination, in a maohinefor barb- 7. The combination, with block4, of bar 5 ing feneewire, of an inclined barb-receptacle, and head 13of arm 12, substantially as and U, provided with anges U and a. centralrib, for the purposes set forth.

U,"substantia11y as and for the :purposes set forth.

6. The combination, with sliding frame-T and inclined barb-receptacle U,of standards Witnesses: 16 and 17, provided with 1in gers 18 and 19,sub- 0. T. EARLE, starntially as and for the purposes set forth. GEO. E.SWINSCOE.

THOMAS B. DOOLITTLE.

